Transcript Dendrology
Ms Cichon Rosholt Agriscience Dept Leaf 2. Branch 3. Stem/Trunk 4. Roots 1. Needle-Leaf Conifers Scale-Leaf Conifers Untoothed Simple leaves Toothed Simple Leaves Lobed Simple Leaves Compound leaves Conifer- grow cones Deciduous- drop leaves during winter Evergreen- stay green all year Which of these two are opposites??? Hardwood that it grows flowers, like the cherry blossom tree. Hardwood trees have broad leaves and are usually deciduous. Its seeds have some kind of covering - an apple tree hides its seeds in an apple, and an oak tree hides its seeds in an acorn. Softwood means it is coniferous. Instead of growing flowers, it grows cones, like the pine tree! And instead of broad leaves, it usually grows needles on its branches. Its seeds have no covering, and just fall to the ground to grow a new tree. The terms "softwood" and "hardwood" aren't complete nonsense though – softwoods tend have softer wood than hardwoods, but it just isn't always true. Needlelike Scalelike Unique in that the leaves are narrow in width and quite long in length. Needle length differs among tree species Helps with Tree Identification Single- 1 needle per node Group- 2-5 needles per node Cluster- 5 or more needles per node Flat Fir Four-Angled Three Angled Spruce Cedar Cypresses Junipers The shape consists of overlapping leaves which look like scales Junipers Cedar Cypresses Cedar Cypress Juniper Name 5 ways that These three trees Are different in Comparison Must be in a Table Format! One that has only one set of leaf parts Don’t get it? What is a stem? What is the difference between Compound and Simple? Untoothed Toothed SMOOTH leaf margin What trees have untoothed leaves? ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ Catalpas Dogwood Encalyptus Magnolias Oaks Redbuds Sumacs Willows MANY broadleaf have teeth What leaves have teeth? ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ Alders Birches Cercocarpuses Cherries Cottonwoods Crabapples Elms Hawthorns Hophornbeams Mulberries Oak Willows Rounded Division What are some lobed leaves? ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ Clifforse California fremontia Ginkgo Hawthorn Maple Mulberry Oak Poplar Sweetgum Sycamore Yellow poplar Multiple Leaflets come from one node ◦ ◦ ◦ ◦ ◦ ◦ ◦ Ashes Pecans Sumacs Walnuts Locusts Hickories Elders Terminal petiolule + Petiole+ Rachis= Leaf Stalk Pinnately compound ◦ Arranged along a central leafstalk Bipinnately compound ◦ Leaflets are attached to branches off the central leafstalk Palmately Compound ◦ Leaflet is attached to the end of the leaf stalk Ashes Elders Hickories Pecans Sumacs Walnuts Locusts Acacias Kentucky Coffeetree Mesquites Palverdes Buckeyes Common Hoptree American Bladdernut Maple Oak